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Finding the Fourth Proportional to 12,908.34, 19,358.28 and 4,141.17

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Solution

The fourth proportional to 12,908.34, 19,358.28 and 4,141.17 is: 6,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.34 : 19,358.28 = 4,141.17 : x
  2. Step 2: Convert to fraction form
    12,908.34/19,358.28 = 4,141.17/x
  3. Step 3: Cross multiply
    12,908.34x = 19,358.28 × 4,141.17
  4. Step 4: Simplify right side
    12,908.34x = 80,165,928.39
  5. Step 5: Solve for x
    x = 80,165,928.39/12,908.34
  6. Step 6: Final answer
    x = 6,210.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.